Intel Xeon E5 2680 's Advantages
Released 5 years and 4 months late
Higher base frequency (2.7GHz vs 2.333GHz)
More modern manufacturing process (32nm vs 65nm)
Xeon E5345 's Advantages
Higher specification of memory (DDR3
Depends on motherboard vs DDR3)
Lower TDP (80W vs 130W)